package cn.edu.dlut.port.isp.date;

import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.Payload;
import java.lang.annotation.*;
import java.time.LocalDate;

@Target({ ElementType.FIELD })
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = PastLocalDate.PastValidator.class)
@Documented
public @interface PastLocalDate {
	String message() default "{javax.validation.constraints.Past.message}";

	Class<?>[] groups() default {};

	Class<? extends Payload>[] payload() default {};

	class PastValidator implements ConstraintValidator<PastLocalDate, LocalDate> {
		public void initialize(PastLocalDate past) {
		}

		public boolean isValid(LocalDate localDate, ConstraintValidatorContext context) {
			return localDate == null || localDate.isBefore(LocalDate.now());
		}
	}
}